Merge "Recreate taskbar when dark mode changes" into sc-v2-dev am: d71a4288cf am: 446dfa8b11

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16144065

Change-Id: Iff95244b9cc0b75ee4e1ea4e88031d3057b5a025